The structural foam developed in the 1960s is characterized by core foaming, non-foaming of the skin layer, external hard and toughness, high specific strength (strength per unit mass), low consumption, and increasingly extensive replacement of wood. Used in the construction and furniture industries.
The chemical or radiation cross-linked foaming technology of polyolefins has been successful, resulting in a significant increase in the production of foamed plastics. The foamed plastic obtained by blending, filling, reinforcing and other modified plastics has better comprehensive performance and can meet the needs of various special purposes. For example, a glass fiber reinforced polyurethane foam obtained by reaction injection molding has been used as a structural component of an airplane, a car, a computer, etc., and a foam made of polybenzimidazole filled with hollow glass beads is light and resistant to high temperatures. , has been used in spacecraft.
Steel belt elevator advantages
1. Steel belt traction elevator, can maximize the utilization rate of well, reduce the top height, reduce pit depth.
2. Maintenance-free: the inner steel belt is multi-strand high strength steel wire, the surface is polyurethane polymer material, without lubrication.
3. High life: the life of steel belt is 2â€3 times that of traditional steel wire rope.
4. High efficiency: the steel belt and wheel contact area is larger, more efficient and energy saving.
5. Noise reduction: steel belt and wheel friction noise is less.
6. Because the diameter of the main wheel and the regulating wheel of the steel belt becomes smaller, there is no need for Angle change, which is beneficial to prolong the life of the steel belt and smooth operation.
Notes for installation of steel belt elevator
1. High levelness is required for the steel belt host due to the larger width of the traction wheel.
2. At the same time, ensure the levelness of the main wheel and the regulating wheel in all directions to prevent the deviation of the steel belt.
3, keep the cleanliness of the steel belt.
4, FAXI steel belt host specially equipped with McGowdy steel belt, pay attention to the rough surface of the steel belt and traction wheel contact when installing.
5. Confirm the consistency of the tension force of each steel belt
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